On 30 Dec 2010 17:49:46 -0500 "John R Levine" <jo...@taugh.com> wrote:
[...] > I'm not wedded to the CNAME hack. Actually, I was thinking about that. Consider a hack on a DNS server that gives all records an absolute expiry time that marches forward in (say) 5-minute intervals. Then when the DNS server is queried, the TTL is computed to be the difference between the current time and the next absolute expiry. In that way, you can try to expire all related records at close to the same time. Just an idea. > PS: While you're at it, SMTP needs to be replaced, too. Apples and oranges. SMTP was designed for sending email, which it excels at. The DNS was designed as essentially a distributed lookup table. It was never designed to be warped into a read-only B-tree. :) Regards, David. PS: Alternatives do exist. ClamAV's signature-distribution mechanism is one.
